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Model
WD-D6-B
Filter capacity
1000 gallons
Materials
System cover: BPA-free plastic
Faucet: metal
Filter: WD-D6RF
Filter materials: reverse osmosis membrane & sediment PP membrane & activated carbon block
Accessories
Waterdrop PMT small water pressure tankWaterdrop PMT small water pressure tank
Power cord length
73 inches
Product dimensions
15.98 x 5.98 x 11.97 inches
Color
Black
Flow rate
600GPD
Components Included
System cover, brushed nickel faucet, feed water adapter、PE tubing*3 ( 79" ), drain saddle, lock clip,power adapter (Main power cable 73", faucet's power cable 59")
What is new about the Waterdrop D6 RO water filter system?
The first PP cotton layer filters out sediment, rust, and other large particles.
The activated carbon block layer reduces organic matter and chlorine.
The second PP cotton layer further reduces suspended matter and other impurities.
The reverse osmosis membrane layer has a filtration accuracy of 0.0001μm, which intercepts TDS, salt, nitrates, PFAS, lead, sodium, chromium, benzene, etc.
The post-activated carbon block layer reduces taste and odor to improve the taste of water.
What impurities can D6 RO water system remove?
How to read the TDS? And why are there two numbers?
Does this home reverse osmosis system fit in my under sink?
How do I install Waterdrop RO water filter system?
How often do I need to change the filter?
What is RO water filter system?
Does this reverse osmosis water system reduce chromium?
How well does this RO water filter system reduce nitrates?
Does this RO water system remove chemicals used to soften water?
Can this filter be used as a reverse osmosis water system for home?
Will this reverse osmosis filter system completely reduce fluoride?
Is this reverse osmosis water filter system unit suitable for well water?
The reasons are as follows:
1. Large particles.
Compared to municipal tap water, the well water is rich of large particles, which will clog the filters easily, and shorten their lifetime significantly.Please note that the filters will still need to be replaced more frequently, even if you have added a pre-filtration system.
2. Composition
The well water has very complicated compostion, and some of them (apart from the large particles) can cause the filter or internal valve to be clogged and prevent the RO system from normal performance.
3. Water pressure
The well water may not provide the feed water pressure that the RO system requires (14.5 psi min.). Furthermore, the water pressure will be even lower after passing through pre-filtration systems.
Does this home reverse osmosis system require an under-sink electrical outlet?
Does this RO water filter system remove salt from my water softener?
b. If a salt-based water softener is installed BEFORE the RO unit:
-The filtered water could be salty since our unit can only remove 90% salt added by the softener.
-The RO filter’s lifetime could be shortened due to the unusual amount of sodium in the source water, which is NOT covered by the warranty.
-We have already put a clear warning on the product page regarding this aspect.
c. If your water softener is NOT salt-based, then our RO unit should work properly with it.
Does this reverse osmosis water filter system lower the pH of the water?
What does Pure to Drain Rate mean?
What is water pressure tank?
How to install the reverse osmosis tank?
What size small water tank do I need?
How many gallons is a RO tank?
Can I connect tankless reverse osmosis system to refrigerator/icemaker?
Fortunately, the pressure tank eliminates problems with water pulse because of inconsistent pressure; This comes in handy when you’re using the refrigerator with other appliances over a long distance, which may cause a delay in filtered water production.












![]() D6 RO Filtration System
| ![]() D4 RO Filtration System
| ![]() G3P800 RO Filtration System
| ![]() G3 RO Filtration System
| ![]() G2P600 RO Filtration System
| ![]() G2MNR RO Filtration System
| |
Installation | √ | √ | √ | √ | √ | √ |
---|---|---|---|---|---|---|
Beneficial Minerals | × | × | × | × | × | √ |
Flow Rate | 600 GPD | 400 GPD | 800 GPD | 400 GPD | 600 GPD | 400 GPD |
Pure to Drain Rate![]() Drain ratio stands for the ratio of wastewater and purified water dispensed by a RO system. For example, the 3:1 drain ratio means it uses up a gallon of wastewater for every 3 gallons of pure water you get. | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
Faucet | Smart faucet | Ordinary faucet | Smart faucet | Smart faucet | Ordinary faucet | Ordinary faucet |
Display | Filter lifespan & TDS | Filter lifespan | Filter lifespan & TDS | Filter lifespan & TDS | Filter lifespan | Filter lifespan |
Self-clean | √ | √ | √ | √ | × | × |
Holiday mode | √ | × | √ | √ | × | × |
Electricity Required | √ | √ | √ | √ | √ | √ |
RO Membrane | DOW | DOW | DOW | DOW | TORAY | TORAY |
Filter Cartridges | WD-D6RF | WD-D4RF | WD-G3-N1CF WD-G3P800-N2RO WD-G3-N3CB | WD-G3-N1CF WD-G3-N2RO WD-G3-N3CB | WD-G2CF WD-G2P6MRO | WD-MNR35 WD-G2CF WD-G2MRO |
Noise(≤) | 55dB | 55dB | 65dB | 65dB | 55dB | 55dB |
Filter Lifespan | 12 months | 12 months | CF-6 months CB-12 months RO-24 months | CF-6 months CB-12 months RO-24 months | CF-12 months P6MRO-24 months | MNR-12 months CF-12 months MRO-24 months |
Dimensions (inch) | 15.98*5.98*11.97 | 16.02*6.22*12.44 | 18.11*5.67*17.72 | 18.11*5.67*17.72 | 17.32*5.91*13.9 | 17.32*5.91*13.9 |
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